Changing it into a black would probably be cheaper than a good respray I think, and that's what I would do. T
I have a (almost) real Knightrider car btw :)
I have number 24 on http://www.ne.jp/asahi/z32/na/mat32.html, it's not a Key Car though but is the exact same car as on the picture... They have also made a newer version of them recently a few years back, if I remember right.
If the router doesen't have built-in NAT, the IP's of each machine will be different. If it has NAT the IP of each machine will be the same outwards, but they have their own IPs for your local area network.
I'm not sure how editable the vBulletin board engine is really, usually the rank comes where the "Registrered user" text is for us, and I think that's where it would come in this case too.